Gasoline mixing device



June 12, 1951 KUFNER 2,556,696

\ GASOLINE MIXING DEVICE Filed March 6, 1950 2 Sheets-Sheet l INVENTOR Fred [fa/7197' BY Q ATTORNEYS June 12, 1951 KUFNER 2,556,696

GASOLINE MIXING DEVICE Filed March 6, 1950 2 Sheets-Sheet 2 INVENTOR Fined fil ffif ATTORNEY5 Patented June l2, 1951 GASOLINE MIXING DEVICE Fred Kufner, Portland, reg., 'assignor of onehalf to L. B. Sandblast Application March 6, 1950, Serial No. 147,780

6 Claims.

This invention relates to a gasoline mixing device, and, more particularly, to such a device adapted for the admixture of air and gasoline in an internal combustion engine.

The primary object of this invention is the provision of an improved means for feeding purified air to the carburetor and intake manifold of an internal combustion engine to provide improved performance and cooler action.

An additional object of the invention is the provision of a device adapted thoroughly to purify and cleanse the air before admitting the same to the carburetor or the intake manifold.

Still another object of the invention is'the provision of a device of this character adapted to utilize a volatile fluid as a purifying medium, which fluid may also volatilize to emit additional gases of combustion.

Still other objects will in part be obvious and will in part be pointed out as the description of the invention proceeds and shown in the accompanying drawings wherein there is disclosed a preferred embodiment of this inventive concept.

In the drawings:

Figure l is a side elevational view of one form of device embodying features of the instant invention disclosed. in connection with a conventional internal combustion engine.

Figure 2 is a top plan view of the device of Figure 1, parts thereof being broken away.

Figure 3 is an enlarged sectional view taken substantially along the line 33 of Figure 2 as viewed in the direction indicated by the arrows.

Figure 4 is a sectional view taken substantially along the line '44 of Figure 3 as viewed in the direction as indicated by the arrows.

Figure 5 is an enlarged sectional view taken substantially along the line 5-5 of Figure 4 as viewed in the direction indicated by the arrows; and

Figure 6 is an enlarged sectional view taken substantially along the line 65 as viewed in the direction indicated by the arrows.

Similar reference characters refer to similar parts throughout the several views of the drawmgs.

Referring now to the drawings in detail and, more particularly, to Figures 1 and 2, there is generally indicated at if] the cylinder block of a conventional gasoline internal combustion engine provided with an intake manifold M, having a plurality of passages I2 leading to individual cylinders, and an intake feed pipe [3 extending to a carburetor IA. The carburetor I i is provided with a gasoline inlet Is, an air inlet 2 I6, and admission of mixed air for gasoline to the intake manifold i is controlled by a suitable butterfly valve (not shown) controlled by a lever I6 pivotally connected as at I? to a control rod 8 extending from the accelerator of the motor vehicle.

From the air inlet IS a pipe [9 leads to a tank 20, to be more fully described hereinafter, secured to the fire wall 2! of the Vehicle, or in any other desired suitable position, as by means of clamping strips 22 suitably secured as by nuts and bolts 23 to the fire wall.

As best shown in Figures 3 and 4, clamping rings 22 are split and provided with outwardly extending flanges 23 secured about the tank 2% as by nut and bolt connections 26. Tank is provided with inlet 21 adapted to be closed by cap 23 and is provided with a drainage cook 29 in fully described hereinafter. The tank 20 has closely fitted within the upper portion thereof a sleeve 30, including an arcuate closed cap 3! and having a centrally positioned aperture 32 therein containing an open ended centrally positioned tube 33 provided interiorly with offset angularly disposed stepped baffles 35. Tube 33 extends downwardly to a plate like member 35 forming substantially a closure for the bottom of sleeve 30, and provided with a series of radial aper- 'tures 36, which may be closed by filter material 31, such as steel wool or the like. The air inlet tube i9 extends through arcuate top 3! into the portion of the device above plate 35.

Extending upwardly from plate 35 is a relatively small tube 40 which extends outwardly through arcuate top wall 3| of sleeve 36 through a chamber M containing, as best shown in Figure 6, a butterfly Valve 42 mounted on an axle d3, controlled by a link it, which is pivotally connected as by a pivot 45 (see Figure 1) to carburetor control rod l8 for coaction with the butterfly valve controlled by the lever Hi. The tube id is provided with two branches '45 and 47, both of which communicate directly with the intake manifold II.

In the use and operation of the device, it will be readily understood that the lower portion of tank '2!) is filled with a suitable fluid, preferably kerosene, although alternatively, oil, or even water, may be used. When the motor is energized, air is drawn through the inlet of the tube 33, over the staggered bafiies 34, upon which a certain amount of impurities collect, thence downwardl over the surface of the liquid such as kerosene in the bottom 0f the tank, and thence diffused upwardly into the tube 40 and through the filters 31 in the apertures 36 to the inlet tube l9. Additional impurities will be gathered by the kerosene upon contact with the air while the fil ters 31 still further purify the air before admission either to the carburetor or to the intake manifold.

It will be readily apparent that the purified and filtered air admixed with the gasoline in the carburetor materially improves the performance and wearing qualities of the engine, while the air admitted through tube 40 directly to the intake manifold ll serves as a coolant medium to materially reduce the temperature thereof.

It will be understood that due to the interaction of the carburetor butterfly valve and the butterfly valve @2 that as the speed of the motor is increased, additional air is admitted through the tubes 46 and 4'! to the intake manifold.

Under certain circumstances, as for example, in very cold Weather it may be desirable to cut oil the direct flow of air into the intake manifold. For this purpose, any manually controlled out off valve 50 is positioned in line 40. Valve 50 may be of any desired conventional type and controlled in any desired conventional manner either by direct or remote control.

From the foregoing it will now be seen that there is herein provided a device which accomplishes all the objects of this invention, and others, including many advantages of great practical and commercial importance.

As many embodiments may be made of this inventive concept, and as many modifications may be made in the embodiment herein shown and described, it is to be understood that all matter herein is to be interpreted merely as illustrative and not in a limiting sense.

I claim:

1. In a device of the character described for use with an internal combustion engine, including a cylinder block, an intake manifold, and a carburetor; an air purifying tank comprised of a tubular member, a second tubular member hav- 4 ing a closed top seated therein, an inlet passage through said closed top comprising a centrally positioned tube, a closure plate across said second mentioned tubular member, said inlet passage extending through said plate, an air outlet extending from said top to said carburetor, apertures in said plate permitting air passed from said tubular inlet below said plate to return to said air outlet, and a second air outlet extending from said plate to said intake manifold.

2. In a device of the character described for use with an internal combustion engine, including a cylinder block, an intake manifold, and a carburetor, an air purifying tank comprised of a tubular member, a second tubular member having a closed top seated therein, an inlet passage through said closed top comprising a centrally positioned tube, a closure plate across said second mentioned tubular member, said inlet passage extending through said plate, an air outlet extending from said top to said carburetor, apertures in said plate permitting air passed from said tubular inlet below said plate to return to said air outlet, a second air outlet extending from said plate to said intake manifold, a butterfly valve in said last mentioned air outlet, and means controlled by the accelerator rod of said engine for controlling said butterfly valve.

3. The construction of claim 1 wherein the tubular air inlet member is provided interiorly with a plurality of spaced angularly disposed baflles.

4. The construction of claim 3 wherein the apertures in said plate contain air filtering material.

5. The construction of claim 1 wherein the lower portion of said tank is adapted to contain a volatile fluid.

6. The construction of claim 5 wherein said lower portion of said tank is provided with a fluid inlet member and a drainage cock.

FRED KUFNER.

No references cited. 

